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Activated

Footstep Activated LED Trouser Light Circuit

Last Updated on September 20, 2025 by Swagatam 1 Comment

led trouser circuit

In this post I have explained how to transform your ordinary trousers into a chasing LED lit trousers which produces an shooting LED light chasing effect in response to your footstep movement or thumping. The Circuit Concept The proposed foot step activated chasing LED trouser will enable you to decorate any piece of clothing with LEDs […]

Filed Under: Lamps and Lights Tagged With: Activated, Footstep, LED, Light, Trouser

3 Sound Activated Switch Circuits Explained

Last Updated on July 10, 2025 by Swagatam 129 Comments

In this post I have explained 3 simple sound activated relay switch circuits which can used as a module for any system that might be assigned to trigger by detecting some kind of sound pressure level. Or simply applications  such as a  voice activated alarm security circuit. 1) Circuit Objective Utilizing this basic sound activated […]

Filed Under: Sensors and Detectors Tagged With: Activated, Circuits, Explained, Sound, Switch

Laser Activated GSM Call Alert Security Circuit

Last Updated on October 2, 2024 by Swagatam 55 Comments

simple2Bdelay2BON2Bcircuit

In this post I have explained a simple laser GSM call alert security circuit which immediately calls the master as soon as an intruder is detected through a laser beam interruption. The idea was requested by Mr. Roldan. Circuit Objectives and Requirements I am not an electronic engineer, but I can manage to troubleshoot minor […]

Filed Under: Security and Alarm Tagged With: Activated, Alert, Call, GSM, Laser, Security

Flashlight Activated Burglar Alarm Circuit

Last Updated on January 31, 2024 by Swagatam 3 Comments

flashlight activated burglar alarm circuit

This flashlight triggered burglar alarm circuit will instantly switch ON an alarm as soon as it detects light from the burglar’s torch or flashlight. Burglars and thieves normally set out to steal or rob during nights, when it is completely dark, and depend on a flashlight to investigate the area. Our circuit is setup and […]

Filed Under: Security and Alarm Tagged With: Activated, Alarm, Burglar, Flashlight

Darkness Activated PIR Lamp Circuit

Last Updated on January 10, 2024 by Swagatam 8 Comments

Darkness or night time activated PIR lamp circuit

A very simple darkness activated or night activated PIR lamp circuit project has been explained in the following article. Further in the article we also learn how to upgrade this circuit with an additional emergency lamp facility. This darkness activated PIR lamp will work as I have explained below: It will remain deactivated or disabled […]

Filed Under: Lamps and Lights Tagged With: Activated, Darkness, Lamp, PIR

Automatic Night Activated Wireless Light Circuit for Paintings

Last Updated on January 10, 2024 by Swagatam 12 Comments

single relay 433 MHz remote control switch

In this article I have explained a basic wireless LED light circuit that may be used to autonomously turn on LED lights to illuminate artworks at nighttime.

Filed Under: Automation Projects, Lamps and Lights Tagged With: Activated, Automatic, Light, Night, Paintings, Wireless

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